map-syntax

Syntax sugar for defining maps

Version on this page:	0.3@rev:5
LTS Haskell 24.18:	0.3@rev:9
Stackage Nightly 2025-11-04:	0.3@rev:9
Latest on Hackage:	0.3@rev:9

See all snapshots map-syntax appears in

BSD-3-Clause licensed by Doug Beardsley

Maintained by [email protected]

This version can be pinned in stack with:map-syntax-0.3@sha256:9b0131151f803463b52832ce3d6b7c8ba2acfce93d5353cc57f280b61ec1d96d,2459

Module documentation for 0.3

Data
- Data.Map
  - Data.Map.Syntax

Depends on 3 packages(full list with versions):

base, containers, mtl

Used by 1 package in nightly-2023-01-05(full list with versions):

heist

Haskell’s canonical list of tuples syntax for defining maps is not very convenient and also has ambiguous semantics. This package leverages do notation to create a lighter syntax that makes semantics explicit and also allows the option of fail-fast handling of duplicate keys.